STMicroelectronics MC4558CN

Overview

MC4558CN from STMicroelectronics is a dual bipolar operational amplifier in an 8-pin DIP package, featuring 5.5 MHz gain-bandwidth product, ±12 V output swing into 10 kΩ, and 2.2 V/µs slew rate at ±15 V supply. It provides matched gain/phase between channels and short-circuit protection, used in audio preamplifiers, active filters, and sensor signal conditioning circuits.

For engineers reviewing the MC4558CN datasheet, MC4558CN pinout, MC4558CN application, or MC4558CN equivalent, key selection criteria include unity-gain bandwidth (5.5 MHz), input offset voltage (1–6 mV), common-mode rejection (70–90 dB), thermal resistance (85 °C/W), and DIP8-compatible footprint for legacy through-hole designs.

Technical Context

The MC4558CN implements two independent high-slew-rate bipolar op-amp cores on a single monolithic die, with internal frequency compensation enabling stable unity-gain operation. Its input stage uses matched NPN transistors to achieve low offset drift and tight channel-to-channel matching.

It operates from ±2 V to ±20 V dual supplies, supports rail-to-rail input common-mode range (±12 V), and delivers 20 mA short-circuit output current per channel without latch-up. The device maintains phase margin >45° across load capacitances up to 100 pF.

Key Specifications

Pinout & Package

MC4558CN is housed in an 8-pin plastic dual in-line package (DIP8) with 2.54 mm lead pitch, 9.8 mm body width, and 85 °C/W junction-to-ambient thermal resistance. Pin 1 is marked by a notch or dot on the package top edge.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual operational amplifier applications.

Compared with LM358N and MC1458CN, MC4558CN delivers triple the bandwidth, guaranteed short-circuit robustness, and tighter channel matching-making it optimal for audio, active filtering, and precision dual-path signal chains where performance consistency matters.

Availability

MC4558CN is available at Aetrix Electronics and suitable for audio preamplifiers, active bandpass filters, and industrial transducer interfaces requiring stable component supply across long-lifecycle embedded programs.

Supply support for MC4558CN includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The MC4558 belongs to ST's legacy bipolar op-amp product line, engineered for high-fidelity analog signal processing in cost-sensitive, through-hole-based industrial and audio systems.

FAQ

Is MC4558CN suitable for single-supply operation?

No. MC4558CN is specified for dual-supply operation only (±2 V to ±20 V). Its input common-mode range extends to ±12 V, but it lacks rail-to-rail input or output capability and cannot operate with V− tied to ground. For single-supply designs, consider ST's TS912 or TLV2462 families.

What is the maximum capacitive load the MC4558CN can drive stably?

MC4558CN remains stable with capacitive loads up to 100 pF when configured for unity gain. Beyond that, phase margin degrades below 45°, risking oscillation. For loads >100 pF, add a 10–47 Ω series resistor between output and capacitor, or use a unity-gain buffer stage.

Does MC4558CN have ESD protection on all pins?

Yes. MC4558CN features integrated ESD protection rated at 500 V HBM, 200 V MM, and 1500 V CDM per IEC 61000-4-2 standards. This protects against handling damage during assembly and field operation in non-isolated industrial environments.

How does MC4558CN's channel matching compare to modern CMOS dual op-amps?

MC4558CN achieves ≤0.5 dB gain and ≤1° phase mismatch at 10 kHz - superior to most general-purpose CMOS op-amps (e.g., MCP6022: ±2 dB, ±5°). However, its input bias current (50–500 nA) is higher than CMOS alternatives (1–10 pA), making it less suitable for high-impedance sensor nodes.